Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsPMICsPMIC - display driver LED 8 x 8 (matrix) Any type of number 4-wire, Seriell 7.5 mA MQFP 44

MAX6960–MAX6963

4-Wire Serially Interfaced

8 x 8 Matrix Graphic LED Drivers

19-3696; Rev 4; 11/12

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

General Description

The MAX6960–MAX6963 are compact cathode-row dis-

play drivers that interface microprocessors to 8 x 8 dot-

matrix red, green, and yellow (R,G,Y) LED displays

through a high-speed 4-wire serial interface.

The MAX6960–MAX6963 drive two monocolor 8 x 8

matrix displays, or a single RGY 8 x 8 matrix display with

no external components. The driver can also be used

with external pass transistors to control red, green, blue

(RGB) and other displays at higher currents and voltages.

The MAX6960–MAX6963 feature open- and short-circuit

LED detection, and provide both analog and digital tile

segment current calibration to allow 8 x 8 displays from

different batches to be compensated or color matched.

A local 3-wire bus synchronizes multiple interconnected

MAX6960–MAX6963s and automatically allocates memory

map addresses to suit the user’s display-panel

architecture.

The MAX6960–MAX6963s’ 4-wire interface connects mul-

tiple drivers, with display memory mapping shared and

allocated among the drivers. A single global write opera-

tion can send a command to all MAX6960s in a panel.

The MAX6963 drives monocolor displays with two-step

intensity control. The MAX6962 drives monocolor displays

with two-step or four-step intensity control. The MAX6961

drives monocolor or RGY displays with two-step intensity

control. The MAX6960 drives monocolor or RGY displays

with two-step or four-step intensity control.

Features

o 2.7V to 3.6V Operation

o High-Speed 20MHz Serial Interface

o Trimmed 40mA or 20mA Peak Segment Current

o Directly Drives Either Two Monocolor or One RGY

Cathode-Row 8 x 8 Matrix Displays

o Analog Digit-by-Digit Segment Current Calibration

o Digital Digit-by-Digit Segment Current Calibration

o 256-Step Panel Intensity Control (All Drivers)

o Four Steps per Color Pixel-Level Intensity Control

o Open/Short LED Detection

o Burst White to Display Memory Planes

o Global Command Access All Devices

o Can Control RGB Panels or Higher

Current/Voltage Panels with External Pass

Transistors

o Multiple Display Data Planes Ease Animation

o Automatic Plane Switching from 63 Planes per

Second to One Plane Every 63s, with Interrupt

o Slew-Rate-Limited Segment Drivers for Lower EMI

o Driver Switching Timing Can Be Spread Between

Multiple Drivers to Flatten Power-Supply Peak

Demand

o Low-Power Shutdown with Full Data Retention

o -40°C to +125°C Temperature Range

Ordering Information

Pin Configurations continued at end of data sheet.

PART TEMP RANGE PIN-PACKAGE

M AX6960ATH -40°C to +125°C 44 TQFN - E P *

M A X6 9 6 1AM H -40°C to +125°C 44 MQFP

M AX6961ATH -40°C to +125°C 44 TQFN - E P *

M A X6 9 6 2AM H -40°C to +125°C 44 MQFP

M AX6962ATH -40°C to +125°C 44 TQFN - E P *

M A X6 9 6 3AM H -40°C to +125°C 44 MQFP

M AX6963ATH -40°C to +125°C 44 TQFN - E P *

COL13

COL12

COL11

COL10

COL9

V+

COL8

COL7

COL6

COL5

COL4

GND

OSC

DIN

DOUT

CLK

RST

COL1

COL2

COL3

V+

GND

RISET1

RISET0

ADDCLK

ADDIN

ADDOUT

V+

COL16

COL15

COL14

V+

MQFP

MAX6960-MAX6963

TOP VIEW

Pin Configurations

Applications

Message Boards Industrial Controls

Gaming Machines Audio/Video Equipment

EP = Exposed pad.

Summary of content (34 pages)

PAGE 1
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers General Description The MAX6960–MAX6963 are compact cathode-row display drivers that interface microprocessors to 8 x 8 dotmatrix red, green, and yellow (R,G,Y) LED displays through a high-speed 4-wire serial interface. The MAX6960–MAX6963 drive two monocolor 8 x 8 matrix displays, or a single RGY 8 x 8 matrix display with no external components.
PAGE 2
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers ABSOLUTE MAXIMUM RATINGS (Voltage with respect to GND.) V+ .............................................................................-0.3V to +4V All Other Pins................................................-0.3V to (V+ + 0.3V) ROW1–ROW8 Sink Current ..............................................750mA COL1–COL16 Source Current ...........................................
PAGE 3
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers ELECTRICAL CHARACTERISTICS (continued) (V+ = 2.7V to 3.6V, TA = TMIN to TMAX, typical values at V+ = 3.3V, TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 5 +100 nA LOGIC INPUTS AND OUTPUTS Input Leakage Current DIN, CLK, CS, OSC, ADDIN, ADDCLK, RST IIH, IIL -100 Logic-High Input Voltage DIN, CLK, CS, OSC, ADDIN, ADDCLK, RST VIHI 0.
PAGE 4
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Typical Operating Characteristics 7.4 2.7V DEAD-CLOCK OSCILLATOR 7.6 3.3V 0.3 0.2 2.7V 0.1 MAX6960 toc03 3.6V SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 3.3V 100 MAX6960 toc02 3.6V 7.8 0.4 MAX6960 toc01 8.0 DEAD-CLOCK OSCILLATOR vs. SUPPLY VOLTAGE SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE OPERATING SUPPLY CURRENT vs. TEMPERATURE 95 +125°C +25°C 90 -40°C 85 7.
PAGE 5
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Pin Description PIN MQFP TQFN 1, 6, 11, 12, 44 1, 6, 11, 12, 44 2–5, 7–10 2–5, 7–10 NAME GND ROW1–ROW8 FUNCTION Ground LED Cathode Drivers. ROW1 to ROW8 outputs sink current from the display's cathode rows. 13 13 OSC 14 14 CS Chip-Select Input. Serial data is loaded into the shift register when CS is low. Data is loaded into the data latch on CS's rising edge. 15 15 DIN Serial-Data Input.
PAGE 6
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 1. Levels of Functionality AVAILABLE FUNCTIONS PART RGB 2 RGB RGY RGY MONOCOLOR MONOCOLOR BITS PER 1 BIT PER 2 BITS PER 1 BIT PER 2 BITS PER 1 BIT PER PIXEL* PIXEL* PIXEL PIXEL PIXEL PIXEL REGISTER LIMITATIONS MAX6960 √ √ √ √ √ √ None. MAX6961 — √ — √ — √ PI bit (bit D7) in global panel configuration register is fixed at 0 (Table 22).
PAGE 7
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers • Bicolor: Literally means two color, and usually refers to LEDs built with two LED dice of different colors, typically red and green or red and orange/yellow. • Tricolor: Literally means three color, and can refer to LEDs built with three LED dice of different colors, typically red, green, and blue.
PAGE 8
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 4.
PAGE 9
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers DRIVER0 RED DRIVER1 GREEN DRIVER6 RED RED GREEN DRIVER13 GREEN DRIVER18 RED GREEN DRIVER2 RED DRIVER7 GREEN DRIVER12 RED RED RED GREEN DRIVER19 GREEN RED GREEN DRIVER8 RED GREEN DRIVER16 GREEN RED DRIVER21 GREEN RED GREEN DRIVER10 GREEN RED DRIVER15 GREEN RED DRIVER20 RED DRIVER4 GREEN RED DRIVER9 GREEN RED DRIVER14 RED DRIVER3 GREEN RED GREEN DRIVER22 GREEN RED GREEN DRIVER5 RED GREEN D
PAGE 10
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 5.
PAGE 11
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 7. Register Addressing Modes 8-, 16-, OR 24-BIT DATA PACKET SENT TO MAX6960 8-bit indirect display memory addressing. Address is global display indirect address (14 bits) stored as {MSB, LSB} in {register 0x0A, register 0x09}. — 16-bit device addressing. — Factory reserved; do not write to this address.
PAGE 12
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers tCSW CS tCSS tCL tCP tCH tCSH tDO CLK tDS DIN Dn tDH Dn-1 D1 D0 tDO tDO DOUT D7 D6 D1 D0 . Figure 5. Timing Diagram 24-Bit Transmissions Twenty-four-bit transmissions are read/write, addressand-data accesses to the MAX6960’s display memory (Figure 8).
PAGE 13
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers CS CLK D7 DIN D6 D5 D4 D3 D2 D1 D0 TRI-STATE DOUT Figure 6. 8-Bit Write to the MAX6960–MAX6963 CS CLK D15 =0 DIN DOUT D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 TRI-STATE . Figure 7. 16-Bit Write to the MAX6960–MAX6963 CS CLK DIN DOUT D23 =0 D22 D21 D20 D19 D18 D17 D16 TRI-STATE D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 . Figure 8.
PAGE 14
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers CS CLK DIN D15 =1 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 TRI-STATE DOUT D7 D6 D5 D4 D3 D2 D1 D0 . Figure 9. 16-Bit Read from the MAX6960–MAX6963 CS CLK DIN DOUT D23 =1 D22 D21 D20 D19 D18 D17 D16 D15 D14 D13 D12 D11 D10 D9 TRI-STATE D8 D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 . Figure 10.
PAGE 15
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers 3-Wire Interface Data Lines (ADDOUT and ADDIN) Use of ADDOUT as Plane Change Interrupt (IRQ) One MAX6960 is designated the master device, and this is allocated driver address 0. The master’s ADDIN pin is connected to V+, identifying it as the first device. This first MAX6960 should be the driver for the top-left pixels of the display panel.
PAGE 16
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 9. Register Address Local/Global Control Bit Format REGISTER ADDRESS CODE (HEX) LOCAL: Only the MAX6960 indirected by driver indirect address is written. GLOBAL: All MAX6960s are written with the same data. LOCAL: The MAX6960 indirected by driver indirect address responds. GLOBAL: The MAX6960 configured to address 0x00 responds.
PAGE 17
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 12.
PAGE 18
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 15. Global Panel Configuration Register Format REGISTER DATA REGISTER ADDRESS CODE (HEX) D7 D6 D5 D4 D3 D2 D1 D0 Global panel configuration 0x0D PI C F R DP1 DP0 IP S Table 16.
PAGE 19
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 19. Global Panel Configuration—Ripple Sync Control (R Data Bit D4) Format REGISTER DATA ADDRESS CODE (HEX) D7 D6 D5 D4 D3 D2 D1 D0 Ripple sync is disabled; all interconnected MAX6960s on the same 4-wire bus resynchronize together. 0x0D PI C F 0 DP1 DP0 IP S Ripple sync is enabled; all interconnected MAX6960s on the same 4-wire bus resynchronize with a 0.9537µs delay between adjacent devices.
PAGE 20
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 21. Global Panel Configuration—Color Control (C Data Bit D6) Format REGISTER DATA REGISTER ADDRESS CODE (HEX) D7 D6 D5 D4 D3 D2 D1 D0 Display panel is built with monocolor or RGB digits (permanently set this way for MAX6962 and MAX6963) 0x0D PI 0 F R DP1 DP0 IP S Display panel is built with RGY digits 0x0D PI 1 F R DP1 DP0 IP S Table 22.
PAGE 21
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers START OF NEXT CYCLE ONE COMPLETE 0.
PAGE 22
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers START OF NEXT CYCLE ONE COMPLETE 0.
PAGE 23
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 25.
PAGE 24
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 27.
PAGE 25
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 29. Global Display Indirect Address Format REGISTER DATA ADDRESS CODE (HEX) D7 D6 Global display indirect address LSB 0x09 D7 D6 D5 D4 D3 D2 D1 D0 Global display indirect address MSB 0x0A X X D13 D12 D11 D10 D9 D8 REGISTER D5 D4 D3 D2 D1 D0 Table 30.
PAGE 26
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 30.
PAGE 27
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Table 31.
PAGE 28
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Overtemperature Fault Detection VREF RISET0 42 TO RED LED DRIVERS RINT MAX6960 MAX6961 MAX6962 MAX6963 VREF RISET1 43 The MAX6960 contains an overtemperature (OT) detection circuit, which trips at a die temperature of typically +150°C. The OT event is latched, and is readable in the fault and device ID register (Table 32).
PAGE 29
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Power Supplies The MAX6960 operates from a single 2.7V to 3.6V power supply. Accuracy of the LED drive current of 20mA is guaranteed over this supply range. Accuracy of the LED drive current of 40mA is guaranteed over a supply range of 3.15V to 3.6V. Bypass each of the 5 V+ power-supply pins to GND with a 0.1µF capacitor as close to the device as possible.
PAGE 30
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers IC1A 74VHC541 1 19 DIN 2 3 4 5 6 7 8 9 V+ A1 A2 A3 A4 A5 A6 A7 A8 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 18 17 16 15 14 13 12 11 DIN DRIVERS 0–15 16–31 32–47 48–63 64–79 80–95 96–111 112–127 IC2A 74VHC541 1 19 CS 2 3 4 5 6 7 8 9 CLK 2 3 4 5 6 7 8 9 IC7A 13 12 2 1 74LV27 1kΩ A1 A2 A3 A4 A5 A6 A7 A8 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 18 17 16 15 14 13 12 11 CS DRIVERS 0–15 16–31 32–47 48–63 64–79 80–95 96–111 112–127 0V IC7B 1kΩ 0V 18
PAGE 31
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers R4 47kΩ R2 Q2 D Q3 COL4 COL5 G V+ COL6 TOP VIEW S COL7 R3 1kΩ Pin Configurations (continued) COL8 VDRIVER V+ VDRIVER COL9 The best way to drive RGB LEDs with the MAX6960 is to use three 3-wire buses, one for each color (Figure 17). A single 4-wire interface must be used, with three CSs, COL10 The MAX6960 drivers provide 3 x 2 = 6 bits of color control to an RGB panel, or 64 colors.
PAGE 32
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers 3.3V ADDIN ROW1–ROW8 ANODE ROWS (DIGITS 0, 1) MAX6960 COL0–COL8 ADDOUT COL9–COL16 CATHODE COLUMNS DIGIT 0 DIGIT 1 RED RED ADDIN ROW1–ROW8 ANODE ROWS (DIGITS 2, 3) MAX6960 COL0–COL8 ADDOUT COL9–COL16 CATHODE COLUMNS DIGIT 2 DIGIT 3 RED RED ADDIN ROW1–ROW8 ANODE ROWS (DIGITS 4, 5) MAX6960 COL0–COL8 ADDOUT TO NEXT MAX6960 COL9–COL16 CATHODE COLUMNS DIGIT 4 DIGIT 5 RED RED 3.
PAGE 33
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Package Information Chip Information PROCESS: BiCMOS Maxim Integrated For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO.
PAGE 34
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers Revision History REVISION NUMBER REVISION DATE 0 7/05 Initial release 2 9/06 Initial Power-Up and RST Input sections and timing diagram added 1, 3, 35 3 6/07 Corrected Figure 17 1, 32, 35 4 11/12 Updated Table 30 DESCRIPTION PAGES CHANGED — 25 Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product.